How long would the batteries last, if used on battery power alone?
40351
I'll need to qualify my response by saying I do not need this machine every night, so it's not in constant use; I also use the timer feature (normally I pick the 60 min. setting). Having said that - I'm still on the first set of alkaline batteries since I purchased it in March 2013. If I had to guesstimate, I'd say you should probably get at LEAST a month straight out of nightly one-hour usage.
1125691
I had fantastic luck with regular double A batteries as well. Generally, they would last for maybe about 8 hours of life, and I always got accurate battery life readouts, and was always able to replace them when they got low without any issues.
2145334
It should work for that long. It works better plugged in. I wouldn't leave it going for more than 4 hours with good batteries.
520274
I think I did a three hour gig on batteries with no problem. Since then I just run it on the transformers to be safe. But I suspect they will go for much longer on batteries than I tried.
1371245
No the power keeps the batteries at full charge. You could make cordless if you wanted but that would require a bigger battery? There are some that Glow for a long time after the lights are off.
650242
I haven't had the chance to see how long it would run on battery. It depends on the quality of the battery, pick a good one.Also depends on the 'lift' as another answer suggested. I ran a test for a couple of hours and it had no problem.Also suggest testing battery several times a year (some recommend monthly) as constantly charging a battery will eventually wear the battery out. Battery life is 2-3 years under these conditions, sometimes longer but don't bet a dry basement on it.
346956
On a set of batteries? Probably, I would say 8 hours. It's not very loud. It's good for home use.
1896790
Not long, had to buy an extra 3 pack of batteries to keep on hand. Never leave home without an extra one.
828859
Since this light uses an LED bulb you can expect 5 hours out of the 4 AA batteries it takes to power it. The bulb itself will give you 100,000 hours or about 10 years of use out of it just keep enough batteries on hand and you'll be fine
1314834
AA batteries. Depending how many times the alarm goes off, they should last approximately 6 months.
1002038
To answer your question, yes, it can run solely on battery power for at least a handful of hours if it's completely charged prior to use. The company recommends a full 24-hour charge before using it for a prolonged period of time, whether it's plugged in or not. If you're just using it for an hour or two, it's fine to keep unplugged, but any longer than that, and I'd say plug it in.
396217
Depends how much you use it.I only use mine sparingly and the batteries have lasted for months. Use lithium batteries and they'll probably last a year.
1022204
you can but it will only last roughly around 60 hours depending on the batteries. That is a very wide range estimate, keep in mind.
1870074
On the higher setting, they probably lasted around 18-24 hours. On the lower setting, you could probably expect 24-36. We used them in Haiti and were pretty pleased with their performance. Ended up using half of the batteries that I expected to.
574554
I'm thinking of using this to power some external usb speakers that run on 4.4v at 500mah - how long do you think it will last before battery depletion?
74716
I see your point. You think the solar panel on the light should be sufficient to make these work without batteries, but that's not how it works. These lights have a small solar panel that is attached to the batteries and which charge the batteries to make them work. As opposed to regular batteries which will die within a few days, the solar panel charges and recharges these batteries to make them last a year or two.
627315
depends on what kind of battery you get and how long you let it run without turning it off.